Hex hole Tolerance test

Simple fast to print hex hole size test.

Hole sizes starting at top left (near the small indented circle (see photo/pdf)
6.2 | 6.3 | 6.4
6.5 | 6.7 | 6.8
In mm
The hex bits I have are 6.3mm flat to flat. For me the hex bits easily fits in the bottom three holes, with a good deal of force it will fit in the 6.4mm.